Masao Yano was once a high ranking member of the biggest yakuza group in Japan. He left the yakuza and now runs a private detective office with a young girl Shiori Kuroki. She is in the second grade of elementary school. One day, he gets a phone call for his assistance. He goes out to meet his client, but he finds his client dead.
| Actor | Role |
|---|---|
 Kenichi EndoMasao Yano | Masao Yano |
 Kenshiro IwaiKazuma Ikegami | Kazuma Ikegami |
 Tamaki ShiratoriShiori Kuroki | Shiori Kuroki |
 Jun KanameKiyohiko Tsurumaru | Kiyohiko Tsurumaru |
 Arisa KomiyaRie Kitagawa | Rie Kitagawa |